JP2002021007A - Water absorption type pavement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pavement by pavement panels, in which load pressure is dispersed, a large number of soil surfaces, to which load pressure is not affected, are installed and the supply of rainwater and air to trees is facilitated. SOLUTION: The pavement panels, which are composed of rectangular panels formed in rectangular parallelopipeds respectively and two leg panels symmetrically opposed, forming stepped sections on the lower sides of the rectangular panels and in which the rectangular panels have long-side length (a) and short-side length (b) in fixed thickness, the leg panels have the relationship of c=b+2f in long-side length (c) in fixed thickness and both short sides of the leg panels are positioned at equal distances from both ends of the long sides of the rectangular panels and projecting length (e) from the long sides of the rectangular panels is projected in e=(a-b)/2, are fast stuck mutually, the top faces of the rectangular panels are positioned in the same plane, the long sides of the rectangular panels are crossed at right angles mutually in the adjacent pavement panels, each side face of the short sides of the rectangular panels and long sides on the outsides of the leg panels is positioned in the same plane, and grooves in width (f) are formed by the long sides and short sides of the rectangular panels, thus obtaining the water absorption type pavement. Sections among the lower ends of long sides on the insides of the leg panels may be formed in an arcuate shape brought into contact with the undersides of the rectangular panels. Accordingly, rainwater and air are easy to flow into soil and the pavement is gentle to botanical environment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-absorbent pavement having a pavement of a specific shape.

[0002]

2. Description of the Related Art Conventionally, a pavement board laid on a pavement has a rectangular shape or the like, and the pavement boards are in close contact with each other, or a gap is provided between the pavement boards, and a jointing material is inserted and closed. For this reason, rainwater and air do not seep into the underground soil, which makes it difficult to grow vegetation in the vicinity. An alternative to this is the Japanese Utility Model No. 50-100332, in which a rectangular notch is provided at each corner of one side of the rectangular body, with a width of 1/4 of the side length and an arbitrary depth. It is said that, by appropriately combining paving stones, many voids are formed, each half of which is about one side of the paving stones, which can be provided with a drainage function or can be greened by embankment, but the necessity of this effect is questionable. Japanese Utility Model Publication No. 50-83132 discloses a paving stone with a water-permeability function, which is provided with a through-hole or a void at the joint at the side edge. is not.

[0003]

DISCLOSURE OF THE INVENTION The present invention provides a pavement with a pavement board, in which the load pressure on the pavement board is dispersed over a wide area, and a lot of parts which are not subjected to earth pressure even under a load are provided. The aim is to provide something that facilitates the supply of rainwater and air to preserve the environment.

[0004]

The inventor of the present invention comprises a rectangular board as a pavement board, each of which forms a rectangular parallelepiped, and two leg boards facing each other symmetrically with a step formed below the board. It has a long side length a and a short side length b at a predetermined thickness, and the leg base has a predetermined thickness at a long side length c = b + 2.
f, where both short sides of the footboard are equidistant from both ends of the long side of the rectangular board, and the protruding length e from the long side of the rectangular board is e =
(A-b) / 2 are stuck together so that the upper surfaces of the rectangular boards in each pavement board are in the same plane, and the long sides of the rectangular boards in the adjacent pavement boards are orthogonal to each other. The short side of the rectangular board and the long side outside the leg board are in the same plane, and the long side and the short side of the rectangular board form a groove having a width f, so that a water-absorbent pavement is obtained. I came to find that.

The length of the long side and the short side of the rectangular board and the width of the groove formed by the rectangular boards of adjacent pavement boards in the water-absorbing pavement are appropriately selected. It is convenient to maintain the strength of the pavement board if the gap between the lower ends of the long sides inside the board is in contact with the lower surface of the rectangular board in an arched manner.

A plug having a water passage hole is inserted into a square hole formed by a footboard of a pavement board and a stepped square hole formed by a rectangular board formed at an upper level thereof and having a rectangular shape with a notch. It is convenient to keep it. The above-mentioned square hole is a square. The water-absorbing pavement of the present invention is used as a paving stone for a sidewalk, a parking lot, a garden or the like.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The pavement board according to the present invention comprises a rectangular board and a footboard, and is obtained by molding with concrete, ceramics, glass or the like. The ratio of the length of the long side to the length of the short side of the rectangular board is appropriately 4: 3, and the length of the short side in the footboard is selected according to how much the non-ground area is provided. A plug having a water hole inserted into a stepped square hole in a pavement is formed by molding a synthetic resin or the like.

When the width of the groove between the long side and the short side of the rectangular board in the pavement board adjacent to the water-absorbing pavement is 5 to 10 mm, it does not obstruct pedestrians and serves as a passage for rainwater. . Also, if the length of the short side of the footboard is about twice the length of the rectangular board protruding from the long side, and about 1/3 of the short side of the rectangular board, the contact area of the pavement board becomes small, Since the portion where the load pressure applied to the pavement is not applied to the soil surface becomes large, it facilitates the penetration of rainwater and air into the soil.

In designing the pavement board, based on the following basic equation e = (ab) / 2 (1) c = b + 2f (2), first, the length a of the long side of the rectangular board and the short side Set the length b. From the equation (1), a length e in which the short side of the leg board projects from the long side of the rectangular board is obtained (see FIG. 1). Then
When the water-absorbent pavement is formed, the width f of the groove formed by the long side and the short side of the adjacent rectangular board (see FIG. 5) is set, and the length c of the long side of the footboard (see FIG. 1). The depth of the groove corresponds to the thickness of the rectangular plate. In this case, the length G of one side of the square hole formed by the rectangular board and the length g of one side of the square hole formed by the footboard (see FIG. 7) can be obtained by the following equations. G = (ab) / 2 + f (3) g = (ab) / 2-f (4) The depths of the square holes G and g are the thicknesses of the rectangular board and the footboard, respectively. The length of the short side of the footboard is selected in consideration of the contact area of the pavement board. Finally, if the thicknesses of the rectangular board and the footboard are appropriately selected in consideration of the strength of the board, the basic shape of the pavement board is determined.

In forming the water-absorbing pavement, no plugging work is required, and sand or the like may be put in the grooves between the rectangular boards.
In the water-absorbent pavement formed by the pavement board of the present invention, the load received by the rectangular board is received by the footboard of the water-absorbent pavement board and the footboard of the pavement board adjacent to the short side of the rectangular board on the footboard. . This is repeated, and the load is transmitted two-dimensionally to the other footboards, so that the load is distributed to a large number of footboards in the water-absorbing pavement, and the earth pressure due to the load is dispersed over a wide area. Therefore, the soil hardly hardens, and rainwater easily penetrates.

When a water-absorbing pavement is formed, a stepped square hole is formed. However, when the pavement board is large and the stepped square hole becomes large, the top portion is fitted to the plane position of the rectangular board and a water passage hole is formed. It is advisable to insert a stopper. As a method of utilizing a stepped square hole, it is also possible to install a light emitting device such as a light emitting diode there and form various figures and patterns to decorate a pavement.

[0012]

The present invention will be described more specifically with reference to the following examples. As shown in FIG. 8, the pavement board 1 has an arc shape between the footboards, and is obtained by press-molding concrete. Regarding the shape of the pavement board, first, the length a of the long side and the length b of the short side of the rectangular board 2 were set to 320 mm and 240 mm so that a: b = 4: 3. Then, the footboard 3 projecting from the long side of the rectangular board 2 from the equation (1)
Was calculated to be 40 mm. Next, when the water-absorbing pavement was formed, the width f of the groove 4 formed by the long sides and the short sides of the adjacent rectangular plates 2 was determined to be 5 mm. As a result, according to equation (2), the length c of the long side of the footboard 3 is 250 m.
m. On the other hand, from the formula (3), the value of the length G of one side of the square hole formed by the rectangular board 2 is 45 mm, and from the formula (4), the length g of one side of the square hole formed by the leg board 3 is g.
Was 35 mm, respectively. Lastly, the length of the short side of the footboard 3 is selected in consideration of the ground contact area.
80 mm, twice the length of the short side of the rectangular board 2
And The thickness of the rectangular board 2 and the footboard 3 was 25 mm, and the shape of the pavement board was determined.

To make a water-absorbing pavement, a pavement board 1 adjacent to
In the above, the long sides of the rectangular board 2 are orthogonal to each other, and the short sides of the rectangular board 2 and the long sides on the outside of the footboard 3 are in the same plane so that they are two-dimensionally in close contact with each other. What is necessary is just to form so that the upper surface of the rectangular board 2 may be in the same plane. In order to explain the shape of the water-absorbing pavement, that is, the state in which the pavement board 1 is in close contact, FIGS. 3 and 4 show a state in which two pavement boards 1 of other shapes without an arched portion are combined. 5, FIG. 6 and FIG. 6 show a state in which four are combined. This is enlarged to form a water-absorbing pavement.

A square hole 5 having a step formed by the formation of a water-absorbing pavement (a lower part is a square having a side of 35 mm, and an upper part is a side 45)
9 mm square and 25 mm in depth), a step formed as shown in FIG. 9 made of a colored polycarbonate resin is provided, and a plug 6 having a water hole is inserted and closed.

[0015]

The water-absorbent pavement of the present invention forms a groove between the long side and the short side of the rectangular board of the adjacent pavement board, thereby forming a rainwater passage, and is formed by the footboard and the rectangular board of the adjacent pavement board. The stepped square hole serves as an inlet for rainwater and air into the soil. Even when the plug is inserted into the stepped square hole, the water hole is provided therein, so that it does not hinder the inflow of rainwater or air. In particular, the footboard in the water-absorbing pavement distributes the load on the pavement board over a wide area, and the part without the footboard does not receive the earth pressure due to the load, thereby facilitating the inflow of rainwater and air into the soil.

[Brief description of the drawings]

FIG. 1 shows a pavement board, (a) is a perspective view from above,
(B) is a perspective view from below.

2 (a) is a front view, FIG. 2 (b) is a plan view, FIG. 2 (c) is a right side view, and FIG. 2 (d) is a bottom view.

FIG. 3 is a perspective view when two pavement boards are combined.

FIG. 4 is an explanatory diagram showing a case where two pavement boards are combined.

FIG. 5 is a plan view when four pavement boards are combined.

FIG. 6 is a bottom view when four pavement boards are combined.

FIG. 7 is an explanatory view of a stepped square hole (A, B,
C and D are rectangular boards, and A ', B', C 'and D' are footboards).

FIG. 8 is a perspective view of a pavement board having an arched space between the footboards as viewed from below.

FIG. 9 is a cross-sectional view taken through the center of the square top surface of the plug and cut parallel to the front side surface.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pavement board 2 Rectangular board 3 Footboard 4 Groove 5 Stepped square hole 6 Plug

Claims (4)

[Claims] 1. A pavement board is composed of a rectangular board each forming a rectangular parallelepiped and two leg boards facing each other symmetrically with a step formed below the rectangular board. The rectangular board has a predetermined thickness and a long side length a and The length of the leg has a relationship of c = b + 2f with a predetermined thickness and the length c of the long side, and both short sides of the leg are equidistant from both ends of the long side of the rectangular board. , And projecting from the long sides of the rectangular board so that the protruding length e becomes e = (ab) / 2, the top faces of the rectangular boards in each pavement board are in the same plane. Yes, in the adjacent pavement board, the long sides of the rectangular board are orthogonal to each other, the short sides of the rectangular board and the long sides outside the footboard are in the same plane, and the long sides and short sides of the rectangular board are Width f
A water-absorbent pavement obtained by forming a groove. 2. The water-absorbent pavement according to claim 1, wherein the width of the groove is 5 to 10 mm. 3. The water-absorbent pavement according to claim 1, wherein a space between the lower ends of the long sides on the inner side of the footboard is in contact with the lower surface of the rectangular board in an arched manner. 4. A plug having a square hole formed by a footboard of a pavement board and a stepped square hole formed by a rectangular board formed at the upper level and having a square hole having a notch having a water passage hole. The water-absorbent pavement according to claim 1, 2 or 3, wherein the pavement is embedded.